Medical Definition of Acinus, pulmonary
Acinus, pulmonary: The ending of a tiny airway in the lung, where the alveoli (air sacs) are located.
In anatomy, an acinus is a round cluster of cells, usually epithelial cells, that looks somewhat like a knobby berry.
The word "acinus" means "berry" in Latin. (The plural is "acini".) There are also acini, round clusters of epithelial cells, in the salivary glands and in the pancreas.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 5/13/2016
Medical Dictionary Definitions A - Z
Search Medical Dictionary
Women's Health Resources
- Which Health Screenings Are Free?
- Ladies: Watch Out for These Cancer Signs
- Complementary Treatments for Cancer